Prothrombin

ahd-5
  • noun. A plasma protein that is converted into thrombin during blood clotting.
  • The Century Dictionary and Cyclopedia
  • noun. The proenzym or inactive form of thrombin (the fibrin ferment, in the sense of A. Schmidt).
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • noun. A glycoprotein, produced in the liver, that is converted into thrombin during bleeding and subsequent clotting.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • noun. a protein in blood plasma that is the inactive precursor of thrombin
  • Word Usage
    "Vitamin K – It is essential for the production of prothrombin, which is responsible for the clotting of blood."
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    factor II